desertification

Desertification

Desertification is the process of large areas of grass land turning into desert because of human action and climate change. Desertification results in a dry land where there is little vegetation, practically no clouds in the sky and nothing to reflect the sun back. If we don't stop desertification soon there will be less food, because soil will be less usable.  Vegetation will disasppear or be damaged.  Desertification also causes dust storms, low quality of water and that all hurts us.

This picture above shows where the deserts are. China and Africa have the largest deserts.Arguably, one of the reasons China has large desert areas is because they have high poplution and the intensity of farming has been high. Desertification may be more noticable in Africa because it's close to the equator.

How Does a Grass Land Turn into a Desert? 

What converts a grass land into a desert? Here is what I found.   In some cases trees are cut down for cattle.  Cattle eat the grass and they don't give the grass a chance to regrow. Farmers also give no chance for the soil to recover because they keep farming the same land over and over and don't let the land recover. Low rain fall is another problem that is causing desertification and can happen because the global temperature is rising. Drainage of water is causing the desertification whether there is farmers or not. Lastly there are poor farming techniques that cause big problems because fire takes the moisture away from the soil.

solutions

         I think what we should do to prevent desertification is to bulid wind breaks which protect the soil from being blown away and it also keeps the moisture in the soil. Secondly, we should help farmers to understand proper crop rotation. Farmers should also start growing plants, trees and grass and that keeps the moisture in the soil.

top 5 largest desert areas

      deserts                    location                   approximate area

                                                                         (square km)

1. Sahara Desert                              Northern Africa                                 9.10 million km2
2. Arabian Desert                            South-West Asia                               2.33 million km2
3. Gobi Desert                                 Central Asia                                     1.29 million km2
4. Patagonian Desert                     Argentina/ Chile                                673,000 km2
5. Great Basin Desert                       United States                                   492,000 km2

Immigration

I hope you enjoyed my TimeLine ;D


Ozone Layer ;D

WHAT IS AN OZONE LAYER ???

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The ozone layer is an area of gasses that protects the earth from harmful sun rays. Just like a think skin on an orange or watermelon ;D

WHY IS THERE HOLES IN THE OZONE LAYER ???

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The holes are caused by a lack of sunlight reaching the oxygen in the stratosphere. It is also caused by chlorofluorocarbons (CFCs). Ozone is an unstable gas that decays into oxygen when there is no energy to keep it bound.

WHAT IS A CFC ???

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CFC stands for Chloroflorocarbons.
This cemical is somtimes found in sprays such as spray paint and areosol spray.
CFC is also deadly, it destroys the ozone layer.

WHAT DOES THE OZONE LAYER DOES FOR US ???

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The ozone layer is very thick it is like a big mirror around the earth when the sun shines in, the ozone layer reflects it.

i hope you learened something new today ;D

Nada[1]

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Did you like it, i hope you did !!!

This video is about the Greenhouse effect, i made it by using a Powerpoint.
If you enjoied it leave a comment
and tell me what you think of the video 0.o

Climate Change

I believe that the actions and lifestyles of people has changed our earth's climate. I will be learning about climate change and how we can reverse it on my blog.

If we all work together we can reverse the effects of climate change. I'm writing about climate change because I think it's the most important thing for the future of the earth. If we don't work together the earth may be destroyed in our lifetime.

I am going to learn about what is causing climate change and what we can do to fix it. I'm going to learn about what's happening to the climate in other countries and what their solutions are as well.

I am going to connect with people by reading blogs, leaving comments on blogs, doing surveys, etc.

I will do a lot of thinking on my blog. If my goal is to change the world (climate change), I will need to think about ways of reversing climate change. I will need to think about how I need to change my life as well.

If It Were My Home

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Comparing countries to Canada and see what country is the best to live in. I used powerpoint to compare countries and i also used the site
www.ifitweremyhome.com to get some of my information. The countries that i compared to Canada were Australia, Japan, France, South Korea, china, Iraq, Iran, Syria, Philippines, and India. The result was Australia was the best country to live in. On the other hand, the least country to live in was India. ;D